Some rattlesnakes in a population have markings that help the snakes hide. The snakes with these markings catch more prey,live longer, and have more offspring that the other snakes.What does the theory of natural selection predict about this population?
A.over time, it will become extinct
B.over time, more members will have useful markings
C.it will not change over time
D.over time, fewer members will have useful markings